Patents by Inventor Rex T. Gallagher

Rex T. Gallagher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9926287
    Abstract: A method of crystallizing docetaxel is disclosed. The method comprises (a) combining docetaxel and at least one solubilizing solvent to obtain a solution, wherein the solubilizing solvent is selected from the group consisting of acetone, methyl-tert-butyl ether, tetrahydrofuran (THF), and acetonitrile and (b) adding an anti-solvent to the solution to obtain a crystalline docetaxel, wherein the anti-solvent is water.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: March 27, 2018
    Assignee: Phyton Holdings, LLC
    Inventors: Brian A. Bucher, Edward M. Desimone, III, Roland R. Franke, Rex T. Gallagher, Barry J. Hand, Christopher D. Howe, James H. Johnson, John S. Juchum, Marc A. Plante, T.G. Sambandam, Dong S. Yang
  • Publication number: 20170066734
    Abstract: A method of crystallizing docetaxel is disclosed. The method comprises (a) combining docetaxel and at least one solubilizing solvent to obtain a solution, wherein the solubilizing solvent is selected from the group consisting of acetone, methyl-tert-butyl ether, tetrahydrofuran (THF), and acetonitrile and (b) adding an anti-solvent to the solution to obtain a crystalline docetaxel, wherein the anti-solvent is water.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Inventors: Brian A. Bucher, Edward M. Desimone, III, Roland R. Franke, Rex T. Gallagher, Barry J. Hand, Christopher D. Howe, James H. Johnson, John S. Juchum, Marc A. Plante, T.G. Sambandam, Dong S. Yang
  • Patent number: 9527825
    Abstract: Disclosed is a method of crystallizing docetaxel comprising combining docetaxel and at least one solubilizing solvent to obtain a solution, wherein the solubilizing solvent is methylene chloride and adding an anti-solvent to the solution to obtain a crystalline docetaxel, wherein the anti-solvent is water.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: December 27, 2016
    Assignee: Phyton Holdings, LLC
    Inventors: Brian A. Bucher, Edward M. Desimone, III, Roland R. Franke, Rex T. Gallagher, Barry J. Hand, Christopher D. Howe, James H. Johnson, John S. Juchum, Marc A. Plante, T. G. Sambandam, Dong S. Yang
  • Publication number: 20160176837
    Abstract: Disclosed is a method of crystallizing docetaxel comprising combining docetaxel and at least one solubilizing solvent to obtain a solution, wherein the solubilizing solvent is methylene chloride and adding an anti-solvent to the solution to obtain a crystalline docetaxel, wherein the anti-solvent is water.
    Type: Application
    Filed: February 25, 2016
    Publication date: June 23, 2016
    Inventors: Brian A. Bucher, Edward M. Desimone, III, Roland R. Franke, Rex T. Gallagher, Barry J. Hand, Christopher D. Howe, James H. Johnson, John S. Juchum, Marc A. Plante, T.G. Sambandam, Dong S. Yang
  • Patent number: 9303004
    Abstract: Disclosed is a method of crystallizing a taxane comprising combining the taxane and methylene chloride to obtain a solution and adding an anti-solvent to the solution to obtain a crystalline taxane, wherein the anti-solvent is selected from the group consisting of hexane and heptane.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 5, 2016
    Assignee: Phyton Holdings, LLC
    Inventors: James H. Johnson, T. G. Sambandam, Barry J. Hand, Christopher D. Howe, Roland R. Franke, Brian A. Bucher, John S. Juchum, Rex T. Gallagher, Marc A. Plante, Edward M. Desimone, III, Dong S. Yang
  • Publication number: 20150005517
    Abstract: Disclosed is a method of crystallizing a taxane comprising combining the taxane and methylene chloride to obtain a solution and adding an anti-solvent to the solution to obtain a crystalline taxane, wherein the anti-solvent is selected from the group consisting of hexane and heptane.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 1, 2015
    Applicant: Phyton Holdings LLC
    Inventors: James H. Johnson, T.G. Sambandam, Barry J. Hand, Christopher D. Howe, Roland R. Franke, Brian A. Bucher, John S. Juchum, Rex T. Gallagher, Marc A. Plante, Edward M. Desimone, III, Dong S. Yang
  • Patent number: 8703982
    Abstract: Disclosed is a method of crystallizing a taxane comprising combining the taxane and methylene chloride to obtain a solution and adding an anti-solvent to the solution to obtain a crystalline taxane, wherein the anti-solvent is selected from the group consisting of hexane and heptane.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: April 22, 2014
    Assignee: Phyton Holdings LLC
    Inventors: Brian A. Bucher, Edward M. Desimone, III, Roland R. Franke, Rex T. Gallagher, Barry J. Hand, Christopher D. Howe, James A. Johnson, John S. Juchum, Marc A. Plante, T. G. Sambandam, Dong S. Yang
  • Patent number: 7897796
    Abstract: This invention is directed to a method for isolating and/or purifying one or more taxanes from materials comprising taxanes. In one embodiment, the method comprises the steps of: (a) treating a taxane containing material with an amino containing material attached to a solid matrix, such as a polyethyleneimine-bonded silica chromatographic resin; (b) eluting the desired taxane compound from the resin; and (c) recovering the eluted taxane compound.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: March 1, 2011
    Assignee: Phyton Holdings, LLC
    Inventors: James H. Johnson, T. G. Sambandam, Barry J. Hand, Christopher D. Howe, Roland R. Franke, Brian A. Bucher, John S. Juchum, Rex T. Gallagher, Marc A. Plante, Edward M. Desimone, III, Dong S. Yang
  • Publication number: 20100145080
    Abstract: Disclosed is a method of crystallizing a taxane comprising combining the taxane and methylene chloride to obtain a solution and adding an anti-solvent to the solution to obtain a crystalline taxane, wherein the anti-solvent is selected from the group consisting of hexane and heptane.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Applicant: Phyton Holdings LLC
    Inventors: James H. Johnson, T.G. Sambandam, Barry J. Hand, Christopher D. Howe, Roland R. Franke, Brian A. Bucher, John S. Juchum, Rex T. Gallagher, Marc A. Plante, Edward M. Desimone, III, Dong S. Yang
  • Patent number: 7605278
    Abstract: The invention relates to methods and compositions for converting taxane amides to paclitaxel or other taxanes. In one alternative embodiment, the present invention comprises; (i) selectively protecting at least one OH group of a taxane amide; (ii) contacting the taxane amide with a transition metal compound to reduce the amide; (iii) contacting the reduced amide with an agent capable of substantially removing the transition metal; (iv) contacting the reduced amide with a hydrolyzing amount of acid to form a taxane amine salt in solution; (v) adding a sufficient amount of solvent to solidify the amine salt; and (vi) converting the taxane amine salt into paclitaxel or other taxanes.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: October 20, 2009
    Assignee: Natural Pharmaceuticals, Inc.
    Inventors: Dasheng Wang, Rex T. Gallagher, John S. Juchum, James H. Johnson
  • Publication number: 20080051589
    Abstract: The invention relates to methods and compositions for converting taxane amides to paclitaxel or other taxanes. In one alternative embodiment, the present invention comprises; (i) selectively protecting at least one OH group of a taxane amide; (ii) contacting the taxane amide with a transition metal compound to reduce the amide; (iii) contacting the reduced amide with an agent capable of substantially removing the transition metal; (iv) contacting the reduced amide with a hydrolyzing amount of acid to form a taxane amine salt in solution; (v) adding a sufficient amount of solvent to solidify the amine salt; and (vi) converting the taxane amine salt into paclitaxel or other taxanes.
    Type: Application
    Filed: August 4, 2003
    Publication date: February 28, 2008
    Applicant: NATURAL PHARMACEUTICALS, INC.
    Inventors: Dasheng Wang, Rex T. Gallagher, John S. Juchum, James H. Johnson
  • Patent number: 7220872
    Abstract: The invention provides methods and compositions for reductively deoxygenating an amide group at a C-3? position of a taxane molecule followed by subsequent intra-molecular acyl migration of an acyl group to the C-3? position.
    Type: Grant
    Filed: April 5, 2003
    Date of Patent: May 22, 2007
    Assignee: Natural Pharmaceuticals, Inc.
    Inventors: James H. Johnson, Rex T. Gallagher, Roland R. Franke
  • Patent number: 7176325
    Abstract: The invention provides methods and compositions for selectively acylating a specific hydroxyl group in a molecule of interest containing at least two unprotected secondary hydroxyl groups. Although the methods and compositions of the invention have general applicability, they are particularly useful in the selective acylation of taxane molecules.
    Type: Grant
    Filed: April 5, 2003
    Date of Patent: February 13, 2007
    Assignee: Natural Pharmaceuticals, Inc.
    Inventors: James H. Johnson, Richard J. Pariza, Rex T. Gallagher
  • Patent number: 6998470
    Abstract: The present invention relates to a method of isolating and/or purifying hypothalamic inhibitory factor (HIF) from a sample (e.g., tissue fluid) containing HIF. The present invention provides for isolation of large amounts of HIF using diafiltration, solid phase extraction and immunoaffinity techniques. In one embodiment, the invention relates to a method of purifying hypothalamic inhibitory factor from a sample containing hypothalamic inhibitory factor comprising subjecting the sample to diafiltration, solid phase extraction and immunoaffintiy chromatography.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: February 14, 2006
    Assignees: Bion, Inc., The General Hospital Corp.
    Inventors: Rex T. Gallagher, Garner T. Haupert, Jr.
  • Patent number: 6956123
    Abstract: This invention is directed to a method for isolating and/or purifying one or more taxanes from materials comprising taxanes. In one embodiment, the method comprises the steps of: (a) treating a taxane containing material with an amino containing material attached to a solid matrix, such as a polyethyleneimine-bonded silica chromatographic resin; (b) eluting the desired taxane compound from the resin; and (c) recovering the eluted taxane compound.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: October 18, 2005
    Assignee: Natural Pharmaccuticals, Inc.
    Inventors: James H. Johnson, T. G. Sambandan, Barry J. Haad, Christopher D. Howe, Roland R. Franke, Brian A. Bucher, John S. Juchum, Rex T. Gallagher, Marc A. Plant, Edward M. De Simone, III, Dong S. Yang
  • Publication number: 20040186305
    Abstract: This invention is directed to a method for isolating and/or purifying one or more taxanes from materials comprising taxanes. In one embodiment, the method comprises the steps of: (a) treating a taxane containing material with an amino containing material attached to a solid matrix, such as a polyethyleneimine-bonded silica chromatographic resin; (b) eluting the desired taxane compound from the resin; and (c) recovering the eluted taxane compound.
    Type: Application
    Filed: September 18, 2003
    Publication date: September 23, 2004
    Inventors: James H. Johnson, T.G. Sambandan, Barry J. Hand, Christopher D. Howe, Roland R. Franke, Brian A. Bucher, John S. Jucham, Rex T. Gallagher, Marc A. Plant, Edward M. De Simone, Dong S. Yang
  • Patent number: 6359000
    Abstract: A method of treating cancer with a pharmaceutical composition containing a pine root (Deutero Mycetes) fungal metabolite or an analog or derivative thereof.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: March 19, 2002
    Assignee: Millennium Pharmaceuticals, Inc.
    Inventors: Wei-Dong Jiang, Zhi-Dong Jiang, Rex T. Gallagher
  • Patent number: 5932613
    Abstract: A method of treating cancer with a pharmaceutical composition containing a pine root (Deutero Mycetes) fungal metabolite or an analog or derivative thereof.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: August 3, 1999
    Assignee: Millennium Pharmaceuticals, Inc.
    Inventors: Wei-Dong Jiang, Zhi-Dong Jiang, Rex T. Gallagher
  • Patent number: 5837726
    Abstract: A natural product of Aspergillus fumigatus and specific derivatives thereof, and a method of treating fungal infection therewith.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: November 17, 1998
    Assignee: Millennium Pharmaceuticals, Inc.
    Inventors: David Qin Liu, Zhi-Dong Jiang, Rex T. Gallagher, T. Vance Morgan